Steam-engine.



No; 757,452. PATBN-TBD APR.19,`1904.'

' L. Goos, JB. 1

STEAM ENGINE.

APPLIoATIoN FILED un 1s, 1903.

No MonEL.

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Patented April 19, 1904.

UNITED STATES PATENT OFFICE.

LOUIS GOOS, JR., OF ATLANTIC CITY, NEW JERSEY.

sTEAwi-ENGlNE.

SPECIFICATION forming part of Letters :Eatent No. 757,452, ldatedApri119, 1 904.

Application filed May 16., 1903. Serial No. 157,429. (No model.)

To all whom t may concern:

City, in the county of Atlantic and State of y New Jersey, have inventeda new and useful Steam-Engine, of which the following is a speciication.

My invention is an improvement in steamengines, and relates especiallyto the construction of the cylinders and means of transmitting powerfrom the pistons therein to the driving wheels or shaft.

A further object of my invention is to construct a cylinder in which nostuiiing-box will be required and to provideavalve mechanism in whichthe valve-stem will be connected to the valve substantially in the samemanner as the crank-rod is to the piston, thereby dispensing with thenecessity for a stuffing-box for the valve-stem.

My invention consists in the novel features of construction and in thecombination of parts hereinafter fully described, and pointed out in theclaims. n

In the drawings formingapart of this specication, Figure l is a sideelevation of that portion of an engine embodying my invention. Fig. 2 isa longitudinal section through a cylinder constructed in accordance withmy invention and showing the piston and pistonrod in elevation. Fig. 3is an irregular section about on the line 3 3 of Fig. 2. Fig. 4 isperspective View of the pistons, rod, and crosshead; Fig. 5 is adetached perspective view of a guide-block.

Referring to the drawings, A represents a cylinder carrying at each endsolid end plates A and having a longitudinal slot A2 formed in the s ideof the cylinder intermediate the ends, said slot being slightly greaterin length than the length of the stroke. Working in each end of thecylinder is a piston B, the two pistons being connected by a piston-rodB and neither traveling as far as the slot A2.

A T-shaped coupling B2 is secured on the piston-rod midway the pistons,and in this is secured the inner end ofacross-headBa. This cross-headprojects through the slot A2 and adjacent its outer end is supported inthe depending leg` C of the guide-block C. This guide-block slides in alongitudinal casing C2, secured `on the exterior of the casing and above.the slot A2,.the bottom of the casing being slotted, as at C2, thedepending leg working through said slot. The depending leg is alsoslotted, as at C2. The cross-head extends transversely across this slot,and the `drivingrod D extends into this slot and is pivotally connectedto the cross-head.

The valve-casing E is preferably mounted on the cylinder and is slottedlongitudinally on one side, as shown at E. The other details ofconstruction of this casing are immaterial and may be varied to adapt itto the particular style of engine with which it is to be used. Theslide-valve F is of the usual construction, and the valve-stem F has atits inner end an integral plate reduced adjacent its end and bolted tothe valve, the intermediate portion of the plate bearing against theinner side of the valvecasing and covering the slot. The stem F extendsthrough the slot E, ,and at its outer end it is pivotally connected tothe valve-rod F2. A guide-casing G is carried by the valve-casing, and aguide-block G slides in this casing and has a depending portionsupporting the outer end of `the valve-stem. The construction of thecasing G is similar to that of the casing C2, and the block Crcorresponds to that at C. The remaining parts of the engine areconstructed in the usual manner. The operation of the ydevice will beobvious. Steam is admitted only into the space between the piston-headsand the ends of the cylinder, and the cross-head reciprocates in .theslot A2. As the travel of the pistons stops short of the slot A2, nosteam escapes therethrough., By this construction no stuflng-box isrequired for either the piston-rod or valve-stem. The device as abovedescribed may be used in connection with locomotives, marine Vorstationary engines. Y l

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

l. A device of the kind described comprising a cylinder slottedlongitudinally along one side midway its ends and closed at the ends,

a piston-rod in the cylinder, pistons at each end of the rod, aunion-coupling on the piston-rod midway the pistons a cross-head securedat one end in said coupling and projecting through the slot, a casinghaving a slotted bottom, a guide-block sliding in the casing and havinga'depending leg secured at its lower end to the outer end oi' thecross-head, and a driving-rod connected to said cross-head.

2. The combination with a cylinder slotted longitudinally and closed ateach end of pistons, therein, a rod connecting the pistons, a T-shapedcoupling on thepiston-rod, a crosshead connected to the coupling, acasing secured to the cylinder above the slot, the bottorn of saidcasing being longitudinally slotted, a guide-block sliding in saidcasing, said block having a depending slotted leg extending through theslot of the casing and connected to the cross-head, and a driving-rodWorking in the slot of the leg and pivotally connected to thecross-head.

3. The combination with a cylinder longitudinally slotted on one side,of pistons therein, a piston-rod within the cylinder connecting thepistons, a cross-head secured to the piston-rod midway the pistons andprojecting through the slot, a hollow, longitudinal casing integral withthe cylinder and having its bottom longitudinally slotted, a guide-blockslid` ing in the casing, a slotted depending leg secured at its upperend to the guide-block and extending downward, the said cross-head eX-tending into the slot of the depending leg, and a drive-rod extendinginto said slot and pivotally connected to the'cross-head.

LOUIS GOOS, JR. Witnesses:

JOSEPH ENGELKE, WILLIAM H. MOORE

